Computer Won't Start

Microsoft Windows 7 ultimate 64-bit
March 4, 2010 at 20:13:20
Specs: Windows 7, Intel i7 860/8GB
Computer Only Stays on for a Few Seconds
Around 11/1/2009, I converted my Velocity Micro Raptor (about 3 years old) from an Intel 775 platform to a 1156 as follows: a new OS (MS 7 Ult. 64-bit—clean install from a dual-boot XP & Vista Ult. 32-bit OS), a new Intel chip (i7 860), a new mobo (Gigabyte P55 UD5), a new main drive (Corsair P128 SSD)—though I doubt the new hard drives (2nd is a WD 1TB Caviar Black) have anything to the with the problem described, & 8GB Corsair Dominator DDR3 RAM (4x2GB identical modules—CMD8GX3M4A1600C8). Computer ran w/ 8GB ram recognized & used, but undiagnosed systemic corruption with the OS (over time—never immediate)—links no longer associated, desktop & Win Explorer corruption etc. after 3 clean installs & 3 “upgrade” (same OS) installs + Realtek LAN regularly dropping download speed (after an hour or so) from about 24-30 mb/s to anywhere from 4-11—rebooting modem & router always cured, but a real pain. NO attempt from Gigabyte “support” to trouble-shoot—RMA it (that’s all she wrote)
So I replaced the mobo with an ASUS Maximus III Formula & a new PSU (Corsair HX850 from a TX 750W—tho I doubt the PSU was the problem): 2 problems here, 1) the BIOS would not recognize > 3.99 GB DRAM—not an issue with the Gigabyte; & 2) all temps went up about 10 degrees C higher—with better fans. ASUS support D.O.A.
NOW: in replacing a Noctua NH-U12P with a Cooler Master Hyper 212 Plus, apparently a “loose” black jumper on the ASUS mobo separated from its soldered connection to the right of the CPU & exploded a silver cap behind it (towards the R). So I reinstalled the Gigabyte mobo (problems, but at least I could I had a mostly functional computer). No longer—it turns on for about 2-3 seconds, stops for about 4, & endlessly repeats until I turn off the PSU. I cleared the CMOS for good measure to no effect.
HELP!!! I’ve no idea whether the CPU was fried, or the PSU (which lights red showing power before trying to start the computer) & “read” various LEDs diagnostics on the Gigabyte mobo in the few seconds before it shuts off & repeats the same (using the Noctua CPU cooler which MUCH more securely fastens to the CPU than the Cooler Master—& using Artic Silver 5 thermal paste after using AS cleaner & restorer to clean both the chip & the CPU cooler. In the few seconds that it’s “on”—never reaches the BIOS—there’s a blue light under the CPU, a blue LED that lights & goes off for the RAM (unlike the chip LED which stays blue for the chip until it resets). Towards the front of the memory there’s 6 LEDs that are green (2), yellow (2) & red (2) (L to R to the side of the mobo) & 4 LEDs directly below (to the L) that glow yellow (2) & green (2). Nothing in the Gigabyte User’s Manual explain, what, if anything, these LEDs mean in trying to determine the source of the problem.
Dealing in extreme understatement, any help here would be greatly appreciated. I’ve no ability to swap out the mobo, or a compatible Intel 1156 chip. I do have 2 alternate PSUs, but it does appear that the computer is getting sufficient power.

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#1
March 4, 2010 at 21:06:13
A couple of things to try:
See if it will boot to a Linux disk (not install) to test hardware without windows. (just look at or move some files to see if it continues to run or restarts also)
Run Memtest both to test memory for errors and also to see if motherboard, memory, CPU, PS, & BIOS can all work.
If you can get into BIOS, set it NOT to reboot on error, you can then see error message and post it back (or Google it).
Check or swap out some of the data and power plugs in case one of them are bad (no signal or no power to one component could be your problem).
Make sure that you have enough clearance under your motherboard (shorting out) or an aftermarket cpu fan bracket might need shimming or insulating (also shorting out).

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